EXPERIMENTS IN ORCHARD CULTURE. 



17 



a means of warding off the apple scab fungus. Since this ques- 

 tion was raised other expermienters have pubHshed data bearing 

 upon the subject, but it has been thought best to carry out the 

 work already begun. A comparison of the results here given 

 with those published elsewhere is not without interest. 



In a way, the commercial grading as given on page 16 might 

 be taken as an index of the condition of the fruit on the several 

 plots. In order to get exact percentages, however, four trees, 

 representing, as nearly as possible, the average of the whole, 

 were selected on each plot. From each of these, two and one- 

 half bushels of fruit, taken indiscriminately from all parts of the 

 tree, were carefully graded and counted. The results thus 

 obtained may be regarded as fairly indicative of the character 

 of the fruit on each plot. 



POTASH AND APPLR SCAB. 



Plot. 



"3 



CO 



<u c 



C3 







m 



s 



p 



'6 



as 

 to 

 >) 







oS 

 

 m 



6 

 9 



CM 

 C 



3 



be 

 Z £ 



Kainite 



199 

 282 

 383 

 331 



79 

 65 

 49 

 65 



81 

 160 

 243 



228 



39 

 57 

 91 



38 



40 

 23 

 13 



20 



go 





80 



76 

 88 



Average 



Sulphate 



299 



384 

 395 

 396 

 371 



65 



68 

 51 

 119 

 190 



178 



269 

 213 

 238 

 175 



56 



47 



31 



39 



6 



24 



18 

 13 

 30 

 51 



81 



88- 

 67 

 90 

 99 



Average 



Check 



384 



383 

 334 

 272 

 322 



107 



142 

 194 

 142 

 135 



224 



229 

 139 

 124 

 174 



31 



12 



1 



6 



13 



28 



37 

 58 

 52 

 42 



85 



97 



100 



98 



96 





Average 



Muriate 



328 



332 

 316 

 390 

 331 



153 



190 

 256 

 166 

 177 



166 



140 

 60 



222 

 152 



8 



2 

 

 2 



2 



47 



57 

 81 

 42 

 53 



98 



99 

 100 

 99- 

 99 



Average 



342 



197 



143 



2 



58 



99^ 



As will be seen, the per cent of fruit free from scab increases 

 regularly from the north to the south end of the orchard. The 

 check trees, while producing nearly the same percentage of No. 



